Seac Sub SYNCHRO Serie Manuel D'instructions page 27

Depress two or three times the purge but-
ton of the second stage to discharge dust
or foreign matter. Finally, breathe from
the second stage to make sure that every-
thing functions correctly.
Do not carry out this operation if ambient
temperature is lower than +10°C.
Check the cylinder internal pressure by
means of the appropriate pressure gauge.
In order to optimize the positioning of the
different valves, it is recommended to
place the main and secondary regulators
on the right hand side and the service
valves (pressure gauge hose, jacket hose,
and dry diving suit hose) on the left.
The valve must be fully open before start-
ing diving.
When the regulator is not held in your
mouth at the time of entering into the wa-
ter, it is advisable to submerge it com-
pletely to prevent air discharge due to its
high sensitivity.
The Octopus or the second safety regula-
tor should be used in PRE-DIVE position
and with the appropriate cap fitted on the
mouthpiece to prevent the entrance of
foreign matters or accidental air delivery.
Do not rotate the first stage connection
with the cylinder at any time with the sys-
tem under pressure.
DURING THE DIVE
When the regulator is not held in your
mouth, air self-delivery may occur. Rotat-
ing the regulator upside down while
checking that the same has been previous-
ly filled with water may easily eliminate
this inconvenience.
The use of suitable containers for mouth-
piece protection will prevent such incon-
venience and will also provide a cover for
the passage inside the second stage, thus
removing the risks of sand or dirt contam-
ination.
Verify that the DIVE/PRE-DIVE regulation
on the SYNCHRO second stage is set to ful-
ly guarantee the necessary airflow.
AFTER EACH DIVE
AND PERIODIC MAINTENANCE
Your regulator is made of very high-quality
materials and has undergone exhaustive sea-
water. However, every precaution shall be
28
warning!
Warning!
taken in order to protect the product equip-
ment from the corrosive action of salt.
Below is the procedure to be followed after
surfacing or on board at the end of the dive.
The first operation to be carried out after the
dive is to disassemble the equipment used.
Close the valve by turning it clockwise;
once fully closed discharge all the residual
air remaining in the regulator system by
actuating the second stage purge button.
This operation may require several sec-
onds, as the air leaving the pressure gauge
through the first stage shall pass through a
0.20 diameter. hole.
Unscrew the knob positioned on the yoke
or, in case of Thread connection system,
unscrew the threaded ring nut.
Lay the cylinder down to prevent it from
falling, positioning it in such a way that it
cannot roll in any direction.
Thoroughly clean and dry the first stage
filter and housing with a cloth or with a
soft compressed-air jet.
Repeat the same operation on the protec-
tion cap covering the filter.
Place the protection cap onto the filter
and fasten it by tightening the handle, or
in case of thread connection, screw up the
swivel-screw cap.
Rinse but do not immerse the regulator in
running fresh water taking care of with all
parts.
In this phase do not for any reason remove
the first stage filter protection cap. During
this operation be extremely careful not to
press on the diaphragm, to avoid water
entering into the first and second stage.
If you are not using the regulator for some
weeks, again connect the regulator to a cylin-
der and, by depressing the second stage
purge button to cause continuous air delivery
for about ten seconds. In this way all the wa-
ter is discharged and there is no risk of scale
deposits or undesirable taste.
The regulator shall be put to dry in a place
sheltered from the sun and dust, hanging
from the first stage yoke, so that the hose is
not bent.
At the end of a particularly intensive diving pe-
riod or, in any case, after a long term of inac-
tivity, it is advisable to have a complete over-
haul carried out at an approved Seacsub
service centre. Consequently, we advise you to
contact your dealer who will advise further in-